104 lines
2.9 KiB
PHP
104 lines
2.9 KiB
PHP
<?php
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/**
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* Name: Image Scores (Text)
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* Author: Shish <webmaster@shishnet.org>
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* License: GPLv2
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* Description: Allow users to score images
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*/
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class TextScoreSetEvent extends Event {
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var $image_id, $user, $score;
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public function TextScoreSetEvent($image_id, $user, $score) {
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$this->image_id = $image_id;
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$this->user = $user;
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$this->score = $score;
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}
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}
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class TextScore implements Extension {
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var $theme;
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public function receive_event(Event $event) {
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if(is_null($this->theme)) $this->theme = get_theme_object($this);
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if(($event instanceof InitExtEvent)) {
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global $config;
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if($config->get_int("ext_text_score_version", 0) < 1) {
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$this->install();
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}
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$config->set_default_bool("text_score_anon", true);
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}
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if(($event instanceof ImageInfoBoxBuildingEvent)) {
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global $user;
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global $config;
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if(!$user->is_anonymous() || $config->get_bool("text_score_anon")) {
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$event->add_part($this->theme->get_scorer_html($event->image));
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}
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}
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if($event instanceof ImageInfoSetEvent) {
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global $user;
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$i_score = int_escape($_POST['text_score__score']);
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if($i_score >= -2 || $i_score <= 2) {
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send_event(new TextScoreSetEvent($event->image_id, $user, $i_score));
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}
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}
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if(($event instanceof TextScoreSetEvent)) {
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if(!$event->user->is_anonymous() || $config->get_bool("text_score_anon")) {
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$this->add_vote($event->image_id, $event->user->id, $event->score);
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}
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}
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if(($event instanceof ImageDeletionEvent)) {
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global $database;
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$database->execute("DELETE FROM text_score_votes WHERE image_id=?", array($event->image->id));
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}
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if(($event instanceof SetupBuildingEvent)) {
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$sb = new SetupBlock("Text Score");
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$sb->add_bool_option("text_score_anon", "Allow anonymous votes: ");
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$event->panel->add_block($sb);
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}
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if(($event instanceof ParseLinkTemplateEvent)) {
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$event->replace('$text_score', $this->theme->score_to_name($event->image->text_score));
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}
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}
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private function install() {
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global $database;
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global $config;
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if($config->get_int("ext_text_score_version") < 1) {
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$database->Execute("ALTER TABLE images ADD COLUMN text_score INTEGER NOT NULL DEFAULT 0");
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$database->Execute("CREATE INDEX images__text_score ON images(text_score)");
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$database->Execute("
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CREATE TABLE text_score_votes (
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image_id INTEGER NOT NULL,
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user_id INTEGER NOT NULL,
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score INTEGER NOT NULL,
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UNIQUE(image_id, user_id),
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INDEX(image_id)
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)
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");
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$config->set_int("ext_text_score_version", 1);
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}
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}
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private function add_vote($image_id, $user_id, $score) {
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global $database;
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// TODO: update if already voted
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$database->Execute(
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"REPLACE INTO text_score_votes(image_id, user_id, score) VALUES(?, ?, ?)",
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array($image_id, $user_id, $score));
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$database->Execute(
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"UPDATE images SET text_score=(SELECT AVG(score) FROM text_score_votes WHERE image_id=?) WHERE id=?",
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array($image_id, $image_id));
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}
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}
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add_event_listener(new TextScore());
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?>
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